So you can Make an "original" vampire (wow, what a rare creature in fantasy games), Angel (so "rare", that even 1-winged ones are geting old), and a naked nature-gril (hey that's new, if we don't count all those driads and fairies), but OH-NO-NO, there can never be such thing as an original dragon...
Most of the time they are "your standard big-bad-boss". So, anyone can compile a list of games where you get a dragon as your main?
Queen is somewhat original, walking fortress is new...
But when did "Noble Vampire" become original? Regulus is just a new compiliation of old stuff. Sedna's basicly a rephrasing of a druid. An un-dieing warior? Heard that already... A corrupted life-stealing beast? Wow! how new... and the one in summoner even looked like this one... A mage of two opposing elements wow, what a newcommer...
Atleast there're no elves...
DG is at middle level of originality - a golden spot level - enought cliches to hook a good amount of people, not enought to scare them away.
For that balance mid-popular figurants are best option - ketaurs, werewolfs, angels, demons, dragons, vampires... Just don't get in a dwarf/elf/gnome/hobbit or on contrary centrepide with two heads, human-like legs, wings and kangoroo-bag.
Always pussled me - why aren't humans considered cliche? I'm tired of them being the most poular (and sometimes even the one and only) PC race...